Sewer-pipe and coupling



No. 770,383. PATENTED SEPT. 20, 1964 r J. M.-PHELAN & H. BILLINGS.

' SEWER PIPE AND COUPLING.

APPLIOATION FILED 930.2, 1903.

N0 MODEL.

7 lim UNITED STATES Patented September 20, 1904.

PATENT OFFICE.

SEWER-PIPE AND COUPLING.

SPECIFICATION forming part of Letters Patent No. 770,383, dated September 20, 1904-.

Application filed December 2, 1903. Serial No. 183,512. (No model.)

To all whom, it bury concern.-

Be it known that we, J OHN M. PHELAN and HENRY BILLINGS, citizens of the United States, residing at Jackson, in the county of Jackson and State of Michigan, have invented a new and useful Improvement in Sewer-Pipes and Couplings, of which the following is a specification.

Our invention relates to a pipe made in sections and so jointed as to form when placed in position a practically continuous pipe.

The object of our invention is a pipe of great strength and durability adapted for use as a sewer-pipe by reason of the peculiar joint formation which prevents the escape of obnoxious gases at the joints.

Our invention consists in a pipe constructed as hereinafter described, particularly pointed out in the claims, and shown in the accompanying drawings, in which Figure 1 is a "ertical section through the mold and pipe. Fig. 2 is a detail transverse section drawn through the movable bottom and showing the guides and supports therefor. Fig. 3 is a detail sectional elevation of the meeting ends of two pipes in their locked position. Fig. 4 is a plan view of the mold, showing the arrangement of the strengtheninghooks and stay-rods. Fig. 5 is a detail view showing the manner of supporting the hoops or bands upon the stay-rods. Fig. 6 is a detail view of a portion of the circular block or form that is positioned in the lower portion of the mold. Fig. 7 is an enlarged perspective view showing the manner in which the sections are locked together. Fig. 8 is an end elevation showing a slight modification, the pipe being shown flattened on one side.

In constructing our pipe we use a mold supported on a suitable frame A, comprising a platform A. The platform is cut out, and a movable piece A slides in the cut-out portion and forms the bottom of the mold, this bottom sliding on guideways and being provided with a hook member A forming a handle by which it may be moved. Our mold is formed of two concentrically-arranged pipesan inner pipe C and an outer pipe C'-and our pipe is molded by packing concrete or other suitable materials between the pipes C and C.

The pipes O and C are formed in half-sections,

so that they may be taken apart longitudinally,

if desired. The sections of the pipe C are locked together by the catches 0 carried by one of the sections and engaging the wedgeshaped blocks G carried by the other section. The sections of the pipe C are secured together by suitable strips of metal arranged circumferentially and bolted to the inner face of the pipe, as shown at C In the bottom of the mold, between the pipes C and O and adjacent the latter. is arranged a circular block or form C This form has on its inner face, adjacent its lower edge, an inwardly-projecting shoulder, which has on its upper face a downwardly and inwardly extending beveled portion 0 The block C has a plu rality of perforations or sockets C formed on its upper face at regular distances apart. A plurality of stay-rods D have their lower ends placed in the sockets of the block 0 and at their upper ends, which project above the mold, they are bent to form hook members D. Gircular loops or bands E have parallel slots formed in them at intervals equal to the distance apart of the stay-rods, and the portion of the circumference between these parallel slots is punched outward, as shown at E in Fig. 9. The stay-rods pass through the vertical openings thus formed, and two or more of these bands may be arranged on each set of stayrods. In the drawings We have shown a pipesection having two of the bands E. These bands E are held by the stay-rods between the mold pipes C and C, and preferably nearer the latter. The block (1 bears against the pipe C, but is spaced apart from the pipe C. After these various parts have been assembled the space between the pipes C and C is filled with concrete or material suitable for making a pipe of the kind desired and tamped or otherwise packed. It is obvious that this will form a pipe-section of the material used having at its lower end the reduced portion B and the beveled portion B At the opposite upper end of the pipe the pipe B is also reduced and is beveled on its inner face, as at B whereby it is adapted to fit over a beveled portion B of another pipe-section. As soon as the concrete is sufliciently hardened or set the bottom A can be moved from under the mold, the outer mold-pipe C taken apart, and the inner pipe C permitted to fall through the opening below the platform A The pipe 13 can be lifted and moved by a cable run over a pulley carried by the frame A the cable being provided with hooks adapted to engage the hook members D.

When two sections of our pipe are placed together, the beveled portion B of one section will fit in the portion B of the adjacent section, and it will be understood that after the pipe B is removed from the mold the rods D have their lower ends also bent to form hook members D, so that each rod is formed with a hook member at each end. When the pipe-sections are fitted together, the reduced portion B serves to form an annular groove around the pipe, as clearly shown in Fig. 7, and the rods extend into this groove, and the hook members of one rod overlap those of the others carried by the adjoining sections. A metal band F is arranged in this groove, which may also be designated B, and rests in the hook members extending into said groove. Wedges F are driven in the hook members between the rods and the band F, and the pipe-sections are drawn firmly together. After the various pipe-sections have been jointed in this manner the grooves B are filled with concrete or other suitable material, and thus one continuous pipe is formed. In Fig. 8 we have shown a pipe constructed and put together in essentially the same manner, but formed flattened on one side, as shown at Gr, and thus adapted to rest upon the ground without tending to rotate or roll to one side. This form will be especially useful where the pipe is to be laid on the surface of the ground instead of being placed in a trench.

In using the word concrete to specify the material of which the pipe is made we do not desire to be understood as limiting ourselves to that material only, as any suitable material can be used.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A pipe-section having a plurality of rods l embedded in the pipe and projecting therefrom at the ends, said rods having hook members formed at their ends, and metal bands embedded in the pipe intermediate the ends of the said section and held in place by the rods, substantially as described.

2. A pipe-section reduced at the ends and having slotted metal bands circumferentially embedded therein intermediate the ends of the pipe-section, a plurality of rods extending longitudinally through the pipe-section and passing through the slots of the bands, said rods extending from the pipe at the reduced portions and bent on themselves at each end to form hook members adapted to engage hook members carried by an adjoining section.

3. A pipe formed in sections, each section being reduced at one end and beveled at the end of the reduced portion, and beveled at the opposite end on its inner face, a plurality of rods extending longitudinally through the pipe and embedded therein, said rods having hook members at their ends adapted to over' lap hook members carried by the adjoining section, a metal band adapted to fit between the pipe-sections over the reduced portion of one of the sections and be engaged by the hook members, and means for locking the band in place.

i. A pipe formed in sections, each section having a reduced end portion and oppositely beveled at the ends, stay-rods longitudinally embedded in the pipe and projecting from the ends of each section, hook members formed on said projecting ends, the hook members of adjoining sections being adapted to overlap, of a metal band adapted to encircle the reduced portion of the section and to be engaged by book members of two adjoining sections, wedges adapted to be forced in said hook members, and a suitable co ncrete packed over the hooks, band and wedges, said concrete covering the reduced portion of the pipe-section and forming a continuous pipe.

JOHN M. PHELAN. HENRY BILLINGS. Witnesses:

JAMEs .M. ADAMs, WM. CURRAN. 

